The '''Iowa Department of Transportation''' ('''Iowa DOT''') is the government organization in the U.S. state of Iowa
responsible for the organization, construction, and maintenance of the List of Iowa state highways|primary highway system
. Located in Ames, Iowa|Ames
, Iowas DOT is also responsible for licensing drivers and programming and planning for aviation, rail, and public transit.
The organization was created in 1904 as the '''Iowa State Highway Commission''', an extension of Iowa State College
in Ames. In 1913, the commission was spun off from the college and became a government organization. In 1974, the highway commission was folded into a larger transportation department with other modes of transportation.